Commercial & Industrial ServicesPanel Replacement

  • Panel Replacement & Sub-Panels
  • Exterior Lighting & Signs
  • Interior Lighting
  • Transfer Switches
  • Emergency Generator Service
  • Generator Installation
  • Ballast & Bulb Replacement
  • Emergency Lighting
  • Transformer Replacement
  • Circuit Installation & Upgrades
  • Lighting Retrofit
  • Control Systems
  • Energy Management Systems
  • ElectricalVehicle Charging Stations
  • Code Updates
  • Transfer Switches
  • Custom Lighting Design
  • Door & Keyless Entry Systems
  • Solar Lighting

Also Providing Institutional and Condominium Services

Licensed with:

The Electrical Safety Authority (ESA)  #7006564


Electrical emergencies don’t tend to happen at convenient times. That’s why Ontario Electrical Services Ltd. is at your service day and night to provide timely, efficient electrical repairs, when you need our help the most.. Our highly trained electrical experts will assess your problem thoroughly and effectively to arrive at a workable, cost-effective solution. And we’ll be happy to answer any questions you have along the way.

If you need an emergency electrician, don’t panic: Ontario Electrical Services Ltd. has you covered.

Our Electricians

When you’re considering your options for a commercial or industrial electrician,don’t look further than the crew from Ontario Electrical Services. We offer a wide variety of services, including interior and exterior lighting, wiring, generators, switches, transformers and general electrical work. We offer emergency support when needed, and we’re flexible with our appointment availability seven days a week.

Our locally owned and operated company has a reputation for putting customer needs as a top priority, and we take the time needed to produce high-quality results. We work with premium parts and materials so that we can take pride in the durability of our results. You can rely on us for:

  • Quick response times to phone calls
  • Prompt project completion times
  • Affordable prices

We keep everything neat and tidy throughout a job so that you can have peace of mind about the safety of your belongings.

Commercial & Industrial Electrical Services

The technicians at Ontario Electrical Services are the local experts in commercial and industrial electrical work. We have the specialized skills to install and maintain commercial and industrial electrical systems of every size and scope. At Ontario Electrical Services, reliability, safety and efficiency are our highest priorities. We use the very latest technology and highest-quality materials to ensure that your facility is equipped with an electrical system you can trust to serve you, your employees, and your business. Whatever your project, we’ll handle it with total professionalism, skill and attention to detail.  We ensure that all ESA permits required are obtained and inpsections completed.  We leave every job site as clean and tidy as possible.

Indoor/Outdoor Lighting

The interior and exterior of your property plays an important role in the way your business is perceived. And the right lighting can make all the difference in the world. Make a great first impression with new lighting..  We help property owners/managers improve the look, value and safety of their spaces, through well-designed, expertly installed lighting.


Heating & Cooling

As your heating and cooling system ages, it can lose efficiency and even break down entirely. So when you need HVAC service,count on Ontario Electrical Services to get the job done right. Our skilled contractors are dedicated to serving your HVAC related needs, and our commitment to customer satisfaction makes us an excellent choice for clients who value quality.

Our HVAC services run the gamut from installations to maintenance to repairs. Our philosophy is that no job is too big or too small, and no matter the size or scope of your project, we pledge to complete it on time and within budget. So whether you need a minor fix or a complete HVAC system overhaul, trust our team to provide you with dependable HVAC service.

We invite you to schedule an on-site estimate to learn more about how our HVAC services can benefit you


Electric Panel Installation

Energy Management Service

Do you need an electric panel installed? Our team’s got you covered. We provide reliable panel installation services.

Electrical Service Upgrade

With businesses consuming more and more energy every year, it’s often necessary to upgrade your electrical service to accommodate the extra demand. When running a business, a  multi-unit condominium, or an institution, the need for reliable energy  is crucial. In order for your electrical equipment to function at its optimal capacity, it is absolutely essential to heavy-up, or upgrade, your electrical service.

Electric Vehicle Charging Stations

Emergency Generator ServiceOur roads are playing host to more high-efficiency cars and trucks than ever before. As plug-in hybrid and electric battery-powered vehicles become increasingly popular, demand is increasing for fast, easy ways to re-power on the go. Ontario Electrical Services is your source for electric vehicle charging stations.

Power…When and Where You Need It!

At OES, we’re as committed to protecting our fragile earth and its resources as you are, and we believe that plug-in hybrid and battery-powered electric vehicles have important roles to play in our clean-energy future. As part of our commitment to our customers and our environment, we strive to make it easy, convenient, and cost-effective for owners of gas-saving vehicles to recharge their cars and trucks so they can stay on the road longer while consuming less fuel.

Want to learn more about our electric vehicle charging stations? Contact us today.

Generator Transfer Switch

Investing in a backup generator? You’ll also need a high-quality generator transfer switch. A generator transfer switch allows for a safe, efficient transfer from utility electrical power to generator power. And OES is your source for quality generator transfer switches.

The Reliable Equipment and Service You Need!

In a building equipped with an electrical generator, the generator transfer switch is responsible for activating the generator in the event of a utility outage. Ontario Electrical Services, Ltd. specializes in equipping properties with reliable, top-quality generator switches. The well-qualified technicians at Ontario Electrical Services, Ltd. pride themselves on their skill, meticulous attention to detail, and professionalism. We know that you count on us to ensure that you’re prepared in the event of a power outage. But rest assured: You can trust us to do the job right. 


OES is proud to be a generator company serving the residents of the Greater Toronto Area. We’re able to work in both commercial and residential spaces, and we’ll help you find the right generator for your needs. Whether you need an emergency repair or a power backup for your business, we’ll help you find the best option.

Lighting Retrofit

Do you dread getting that electricity bill every month? Do you feel that your electrical costs are much higher than they should be? Retrofitting your existing lighting system may be the answer you’ve been looking for. At OES, we have the tools and skills to update and retrofit lighting  Systems for any type of building.

We can replace key components in your system with energy-efficient counterparts designed to save you a bundle on electric bills. We can also adjust the wattage output of your system to ensure that you’re getting the most from your lighting. Plus, your newly retrofitted lighting system will be more eco-friendly, helping you save money as well  as helping the environment.